KB: The System Center Management service stops responding after an instance of SQL Server goes offline

After an instance of Microsoft SQL Server that hosts the OperationsManager database goes offline, the System Center Management service of the Microsoft System Center 2012 Operations Manager Service Pack 1 (SP1) management server may stop responding.

For example, the System Center Management service stops responding after the instance of SQL Server disconnects, restarts, or fails. To recover from this issue after the instance of SQL Server is available again, you must restart the System Center Management service.

For more details on this issue and a work around, please see the following: